Howard paekee



. PATENTED FEB. 2, 1904.

H. PARKER.

ROLL FOR PAPER MAKING OR LIKE MACHINERY.

APPLICATION FILED JAN, 3, 1903.

N0 MODEL HVVENTOR. 1; Z/z,

By M 1 454 2 ATTORNEY- UNITED STATES Patented February 2, 1904.

PATENT OFFICE.

HOINARD PARKER, OF NASHUA, NEW HAMPSHIRE, A SSIGNOR TO IM- PROVED PAPERMACHINERY COMPANY, OF OASTINE, MAINE, AND NASHUA, NEW HAMPSHIRE, ACORPORATION OF MAINE.

ROLL FOR PAPER-MAKING OR LIKE MACHINERY.

SPECIFICATION forming part of Letters Patent No. 750,887, dated February2, 1904.

Application filed January 3, 1903. Serial No. 137,641. (No model.)

To all whom it may concern.-

Be it known that I, HOWARD PARKER, a citizen of the United States ofAmerica, residing at Nashua, in the county of Hillsboro and State of NewHampshire, have invented certain new and useful Improvements in Rollsfor Paper- Making or Like Machinery, of which the following is aspecification The roll shown and described herein is particularlyadaptable for use in paper pulptreating machinery or in paper-makingmachinery, although its uses are not limited to this class of work.

The object of the invention is to produce a roll having the greatestpossible amount of strength throughout its entire length and at the sametime be as light as possible. These considerations are of the utmostimportance in pulp-treating and paper-making machinery. The roll must bestiff and strong, so that it will not sag at the center and leavethe'paper wet, and it must be light in order to be readily handled. Ithas been demonstrated that rolls constructed as herein shown anddescribed fulfil these conditions.

In the drawings I have shown a perspective view of a roll embodying myinvention.

The letter A denotes the roll made in the preferred manner. It has thehead a, mounted on the shaft 6. A length of metal O of greater widththan thickness is bent edgewise spirally, extending from one head to theother head. The ends of this strip of metal are secured to the heads, asat (f. To brace these coils properly, I have adopted a novel andefficient method, which I will now proceed to describe in its preferredform. Firmly secured to the shaft and separated from one another bybushings are a series of four armed spiders D D D D. Each arm at its endbranches out into three fingers w y e, the two fingers w 2 being bent toeither side of the central finger out of the plane of the spider.Examining Fig. 1, it will be seen that the central finger of each arm ofthe spider is secured to one turn of the spiral and that one of theother fingers reaches and is secured to the next adjacent on one side,while the remaining finger reaches and is secured to the next adjacentturn on the other side. This is true of the fingers on all of the armsof all of the spiders, and the arrangement continues throughout thelength of the roll. Following out the bracing of the spiral and givingspecial attention to Fig. 1, it will be seen that each course of thespiral at four different points about its circumference is braced fromthree different spiders. It is to be understood that this roll is to becovered with a wire screen in a manner common to rolls of this kind.

I am aware that my invention is susceptible of alterations andmodifications of construction, and I intend to include herein all suchmodifications as do not depart from the spirit of the invention.

I claim as my invention 1. In a cylinder or roll a central shaft and aframe supported thereby, said frame being made up of a strip of metalbent spirally, and a series of spiders supported on the shaft, eachspider supporting one turn of the spiral.

2. In a cylinder or roll a central shaft and a frame supported thereby,said frame being made up of a strip of metal bent spirally, and a seriesof spiders supported on the shaft, each spider supporting one turn ofthe spiral and laterally bracing adjacent turns of the spiral.

3. In a roll a central shaft, spiders secured thereto and supportedthereby, and a strip of metal bent spirally to form the frame of theroll, each spider being secured to two or more adjacent turns of thespiral.

4. In a roll a central shaft, wrought-metal spiders secured to andsupported by said shaft and having two or more arms, and a strip ofmetal bent spirally to form the frame of the roll, each arm of thespiders being secured to three turns of the spiral.

5. In a roll a central shaft, wrought-metal spiders secured to andsupported by the shaft,

arms on the spiders, fingers formed at the end of each arm, and a stripof metal of greater width than thickness bent edgewise spirally to formthe frame of the roll, the fingers on each arm being secured to threedifferent turns of the spiral, substantially as described and for thepurposes set forth.

6. In a cylinder or roll a central shaft and a frame supported thereby,said frame being made up of a strip of metal bent spirally, and a seriesof spiders supported on the shaft, each spider supporting one turn ofthe spiral, and

spacing-sleeves on said shaft between the spi- IO rals, substantially asdescribed.

In testimony whereof I affix my signature in presence of two wltnesses.

HOWARD PARKER.

lVitnesses:

B. A. PEASE, L. H. OTIS.

